Alyeska discloses 4.51% Grid Dynamics (GDYN) ownership stake

Rhea-AI Filing Summary

Alyeska Investment Group and related reporting persons disclosed a passive ownership stake in Grid Dynamics Holdings, Inc. They report beneficial ownership of 3,782,506 shares of Class A common stock, representing 4.51% of the class, with shared voting and dispositive power over all reported shares.

The ownership percentage is based on 84,769,058 shares of common stock outstanding, as cited from Grid Dynamics’ annual report. The filers certify the shares were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of the company.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

GRID DYNAMICS HOLDINGS, INC.

(Name of Issuer)

Class A Common Stock, $0.0001 par value

(Title of Class of Securities)

39813G109

(CUSIP Number)

12/31/2025

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13G

CUSIP No. 39813G109

1

Names of Reporting Persons

Alyeska Investment Group, L.P.

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 3,782,506.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 3,782,506.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

3,782,506.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

4.51 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

CUSIP No. 39813G109

1

Names of Reporting Persons

Alyeska Fund GP, LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 3,782,506.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 3,782,506.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

3,782,506.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

4.51 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

CUSIP No. 39813G109

1

Names of Reporting Persons

Anand Parekh

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 3,782,506.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 3,782,506.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

3,782,506.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

4.51 %

12

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: GRID DYNAMICS HOLDINGS, INC.
(b)	Address of issuer's principal executive offices: 5000 Executive Parkway, Suite 520, San Ramon, CA 94583
Item 2.
(a)	Name of person filing: (i) Alyeska Investment Group, L.P. (ii) Alyeska Fund GP, LLC (iii) Anand Parekh
(b)	Address or principal business office or, if none, residence: (i) 77 West Wacker Drive, 7th Floor, Chicago, IL 60601 (ii) 77 West Wacker Drive, 7th Floor, Chicago, IL 60601 (iii) 77 West Wacker Drive, 7th Floor, Chicago, IL 60601
(c)	Citizenship: (i) Alyeska Investment Group, L.P. - Delaware (ii) Alyeska Fund GP, LLC - Delaware (iii) Anand Parekh - United States of America
(d)	Title of class of securities: Class A Common Stock, $0.0001 par value
(e)	CUSIP No.: 39813G109
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 3,782,506
(b)	Percent of class: 4.51%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 0
	(ii) Shared power to vote or to direct the vote: 3,782,506
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 3,782,506
Item 5.	Ownership of 5 Percent or Less of a Class.
	Ownership of 5 percent or less of a class
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Alyeska Investment Group, L.P.

Signature:	Jason Bragg
Name/Title:	Jason Bragg | Chief Financial Officer
Date:	02/17/2026

Alyeska Fund GP, LLC

Signature:	Jason Bragg
Name/Title:	Jason Bragg | Chief Financial Officer
Date:	02/17/2026

Anand Parekh

Signature:	Anand Parekh
Name/Title:	Anand Parekh | Self
Date:	02/17/2026

Exhibit Information

The reporting persons are the beneficial owners of 3,782,506 shares of Common Stock of the Issuer. The percentage calculation assumes that there are currently 84,769,058 outstanding Common Stock of the Issuer, based on the Issuer's Annual Report to Security Holders filed with the Securities and Exchange Commission on November 10, 2025. JOINT FILING STATEMENT PURSUANT TO RULE 13d-1(k) The undersigned acknowledge and agree that the foregoing statement on SCHEDULE 13G/A, is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on SCHEDULE 13G/A, shall be filed on behalf of each of the undersigned without the necessity of filing additional joint acquisition statements. The undersigned acknowledge that each shall be responsible for the timely filing of such amendments, and for the completeness and accuracy of the information concerning him or it contained therein, but shall not be responsible for the completeness and accuracy of the information concerning the others, except to the extent that he or it knows or has reason to believe that such information is inaccurate.

FAQ

What ownership stake in Grid Dynamics (GDYN) does Alyeska report?

Alyeska and related reporting persons report beneficial ownership of 3,782,506 Grid Dynamics Class A common shares. This represents 4.51% of the company’s outstanding common stock, based on 84,769,058 shares outstanding referenced from Grid Dynamics’ annual report filed November 10, 2025.

Which entities are the reporting persons in this Grid Dynamics (GDYN) Schedule 13G/A?

The reporting persons are Alyeska Investment Group, L.P., Alyeska Fund GP, LLC, and Anand Parekh. All three report the same 3,782,506 Grid Dynamics common shares as beneficially owned, with shared voting and shared dispositive power, and no sole voting or dispositive authority.

Is Alyeska’s Grid Dynamics (GDYN) stake intended to influence control of the company?

The filing states the securities were acquired and are held in the ordinary course of business. It further certifies they were not acquired and are not held for the purpose or effect of changing or influencing control of Grid Dynamics, nor in connection with any control-related transaction.

How did the filing calculate Alyeska’s 4.51% ownership of Grid Dynamics (GDYN)?

The reported 4.51% ownership is calculated using 3,782,506 shares beneficially owned divided by 84,769,058 Grid Dynamics common shares outstanding. The outstanding share count comes from Grid Dynamics’ annual report to security holders filed with the Securities and Exchange Commission on November 10, 2025.

What voting and dispositive powers does Alyeska report over Grid Dynamics (GDYN) shares?

The reporting persons disclose zero sole voting and zero sole dispositive power over Grid Dynamics shares. They report shared voting power and shared dispositive power over all 3,782,506 beneficially owned shares, indicating decisions are made jointly rather than by any single reporting person alone.

Why is this Grid Dynamics (GDYN) Schedule 13G/A marked as ownership of 5 percent or less?

Item 5 indicates ownership of 5 percent or less of the class. The reported 4.51% stake in Grid Dynamics common stock falls below the 5% threshold, so the filing acknowledges that the reporting persons’ holdings are under this level while still meeting disclosure requirements.